Plastic film chill roll water temperature control device

The utility model provides a plastic film chill roll water temperature control device, including the chill roll, the cavity cavity of chill roll is connected with the circulating line, still being equipped with cooling tower, being connected with the moisturizing pipe between cooling tower and the circulating line, the moisturizing pipe is equipped with first solenoid valve, and the moisturizing pipe is first interface with the interface of circulating line, the other drain pipe that has connect of circulating line, the drain pipe is equipped with the second solenoid valve, and the drain pipe is the second interface with the interface of circulating line, the measuring pump is installed to the moisturizing pipe, the circulating line still is equipped with the third solenoid valve, and first interface is close to the water end (W. E. ) of third solenoid valve, and the second interface is close to the end of intaking of third solenoid valve, the outlet of drain pipe communicates cooling tower's water inlet, the circulating line is equipped with the temperature detector of measuring cooling water temperature. The utility model discloses can be disposable with the cooling water in the complete alternation pipeline, completely, the ana cement out, the temperature after the replacement meets the requirements immediately completely, does not have unstable mixing stage of temperature or excessive stage.